GM Service Manual Online
For 1990-2009 cars only

Caution: Refer to Brake Dust Caution in the Preface section.

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  2. Object Number: 1311229  Size: SH
  3. Disconnect the electrical connector from the front wheel speed sensor.

  4. Object Number: 166053  Size: SH
  5. Remove the wheel speed sensor retaining bolt.
  6. Remove the wheel speed sensor from the steering knuckle. If the sensor will not slide out of the knuckle perform the following steps:
  7. 4.1. Remove the brake rotor to access the other side of the knuckle. Refer to Brake Rotor Replacement in Disc Brakes.
    4.2. Using a blunt punch, or equivalent tool, push the sensor from the outboard side of the knuckle.
  8. Inspect the removed wheel speed sensor and the steering knuckle to ensure that the sensors locating pin has not broken off in the locating hole of the knuckle. If the locating pin remains in the locating hole of the knuckle, perform the following steps.
  9. 5.1. Remove the brake rotor, if it has not already been removed, to access the other side of the knuckle. Refer to Brake Rotor Replacement in Disc Brakes.
    5.2. Using a blunt punch, or equivalent tool, remove the broken locating pin from the outboard side of the knuckle.
    5.3. If necessary, clean the locating hole in the knuckle using sand paper wrapped around a screwdriver, or other suitable tool. Never attempt to enlarge the hole.

Installation Procedure


    Object Number: 166053  Size: SH
  1. Install the front wheel speed sensor to the steering knuckle.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the front wheel speed sensor retaining bolt.
  4. Tighten
    Tighten the bolt to 12 N·m (107 lb in).


    Object Number: 1311229  Size: SH
  5. Connect the electrical connector to the front wheel speed sensor.
  6. Lower the vehicle.
  7. Perform the Diagnostic System Check - Vehicle in Vehicle DTC Information.